Transient inactivation of the infralimbic cortex induces antidepressant-like effects in the rat

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TY  - JOUR
  - Slattery, DA,Neumann, ID,Cryan, JF
  - 2011
  - October
  - Journal of psychopharmacology (Oxford, England)
  - Transient inactivation of the infralimbic cortex induces antidepressant-like effects in the rat
  - Validated
  - Altmetric: 1 ()
  - Cingulate depression forced swim test inactivation neuroimaging trait anxiety MEDIAL PREFRONTAL CORTEX ANXIETY-RELATED BEHAVIOR FORCED SWIMMING TEST C-FOS EXPRESSION MAJOR DEPRESSION FEAR EXTINCTION TRAIT ANXIETY ANIMAL-MODEL PREPULSE INHIBITION MOOD DISORDERS
  - 25
  - 1295
  - 1303
  - Affective disorders are among the main causes of disability worldwide, yet the underlying pathophysiology remains poorly understood. Recently, Landmark neuroimaging studies have shown increased metabolic activity in Brodmann Area 25 (BA25) in depressed patients. Moreover, functional inactivation of this region using deep brain stimulation alleviated depressive symptoms in severely depressed patients. Thus, we examined the effect of a similar manipulation, pharmacological inactivation of the infralimbic cortex, the rodent correlate of BA25, in an animal model of antidepressant activity: the modified rat forced swim test. Transient inactivation of the infralimbic cortex using muscimol reduced immobility, an antidepressant-like effect in the test. Importantly, this activity was not the result of a general increase in locomotor activity. Activation of the infralimbic cortex using bicuculline did not alter behaviour. Finally, we examined the effect of muscimol in animals bred for high anxiety-related behaviour, which also display elevated depression-related behaviour. Transient inactivation of the infralimbic cortex decreased the high inborn depression-like behaviour of these rats. These results show that it is possible to replicate findings from a clinical trial in a rodent model. Further, they support the use of the forced swim test to gain greater understanding of the neurocircuitry involved in depression and antidepressant-action.
  - 10.1177/0269881110368873
DA  - 2011/10
ER  - 
@article{V243939779,
   = {Slattery,  DA and Neumann,  ID and Cryan,  JF },
   = {2011},
   = {October},
   = {Journal of psychopharmacology (Oxford, England)},
   = {Transient inactivation of the infralimbic cortex induces antidepressant-like effects in the rat},
   = {Validated},
   = {Altmetric: 1 ()},
   = {Cingulate depression forced swim test inactivation neuroimaging trait anxiety MEDIAL PREFRONTAL CORTEX ANXIETY-RELATED BEHAVIOR FORCED SWIMMING TEST C-FOS EXPRESSION MAJOR DEPRESSION FEAR EXTINCTION TRAIT ANXIETY ANIMAL-MODEL PREPULSE INHIBITION MOOD DISORDERS},
   = {25},
  pages = {1295--1303},
   = {{Affective disorders are among the main causes of disability worldwide, yet the underlying pathophysiology remains poorly understood. Recently, Landmark neuroimaging studies have shown increased metabolic activity in Brodmann Area 25 (BA25) in depressed patients. Moreover, functional inactivation of this region using deep brain stimulation alleviated depressive symptoms in severely depressed patients. Thus, we examined the effect of a similar manipulation, pharmacological inactivation of the infralimbic cortex, the rodent correlate of BA25, in an animal model of antidepressant activity: the modified rat forced swim test. Transient inactivation of the infralimbic cortex using muscimol reduced immobility, an antidepressant-like effect in the test. Importantly, this activity was not the result of a general increase in locomotor activity. Activation of the infralimbic cortex using bicuculline did not alter behaviour. Finally, we examined the effect of muscimol in animals bred for high anxiety-related behaviour, which also display elevated depression-related behaviour. Transient inactivation of the infralimbic cortex decreased the high inborn depression-like behaviour of these rats. These results show that it is possible to replicate findings from a clinical trial in a rodent model. Further, they support the use of the forced swim test to gain greater understanding of the neurocircuitry involved in depression and antidepressant-action.}},
   = {10.1177/0269881110368873},
  source = {IRIS}
}
AUTHORSSlattery, DA,Neumann, ID,Cryan, JF
YEAR2011
MONTHOctober
JOURNAL_CODEJournal of psychopharmacology (Oxford, England)
TITLETransient inactivation of the infralimbic cortex induces antidepressant-like effects in the rat
STATUSValidated
TIMES_CITEDAltmetric: 1 ()
SEARCH_KEYWORDCingulate depression forced swim test inactivation neuroimaging trait anxiety MEDIAL PREFRONTAL CORTEX ANXIETY-RELATED BEHAVIOR FORCED SWIMMING TEST C-FOS EXPRESSION MAJOR DEPRESSION FEAR EXTINCTION TRAIT ANXIETY ANIMAL-MODEL PREPULSE INHIBITION MOOD DISORDERS
VOLUME25
ISSUE
START_PAGE1295
END_PAGE1303
ABSTRACTAffective disorders are among the main causes of disability worldwide, yet the underlying pathophysiology remains poorly understood. Recently, Landmark neuroimaging studies have shown increased metabolic activity in Brodmann Area 25 (BA25) in depressed patients. Moreover, functional inactivation of this region using deep brain stimulation alleviated depressive symptoms in severely depressed patients. Thus, we examined the effect of a similar manipulation, pharmacological inactivation of the infralimbic cortex, the rodent correlate of BA25, in an animal model of antidepressant activity: the modified rat forced swim test. Transient inactivation of the infralimbic cortex using muscimol reduced immobility, an antidepressant-like effect in the test. Importantly, this activity was not the result of a general increase in locomotor activity. Activation of the infralimbic cortex using bicuculline did not alter behaviour. Finally, we examined the effect of muscimol in animals bred for high anxiety-related behaviour, which also display elevated depression-related behaviour. Transient inactivation of the infralimbic cortex decreased the high inborn depression-like behaviour of these rats. These results show that it is possible to replicate findings from a clinical trial in a rodent model. Further, they support the use of the forced swim test to gain greater understanding of the neurocircuitry involved in depression and antidepressant-action.
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ISBN_ISSN
EDITION
URL
DOI_LINK10.1177/0269881110368873
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